AIS-based method for extracting the process of ship collision avoidance

The analysis of ship avoidance maneuvers is of significant value for assessing the risk of vessel collisions and enhancing ship safety management. A new method has been proposed that utilizes the dynamic spatio-temporal data collected by the Automatic Identification System (AIS) to extract avoidance behaviors. This method integrates navigational rules and maritime practices to determine encounter situations and identify the avoidance process. Validation using actual AIS data has proven the accuracy and effectiveness of the method. It offers an efficient model for extracting encounter and avoidance behaviors from AIS data, providing support for the analysis of ship behavior and research on maritime safety.